3 of 3 people found the following review helpful
A great follow on from book 1,
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This review is from: The Times Ultimate Killer Su Doku Book 2 (Paperback)
Having enjoyed the challenges in book 1, I couldn't wait to get hold of book 2. I wasn't disappointed. The puzzles start at deadly (of which there are 100) and move on to Extra Deadly (10 puzzles). These really exercise your mental arithmetic! A target time is given for each puzzle, gradually getting longer as you progress through the book. However, once you get used to the techiniques involved I find that the times are overly pessimistic. The hardest puzzles indicate a time of 2 hours 30 minutes, yet I completed most of the Extra Deadly puzzles in under an hour. I await book 3 with anticipation and look forward to something even more challenging!